[mythtv-users] Subject: Fast-Forward speed limitations?

Jerome Yuzyk jerome at supernet.ab.ca
Sat Nov 18 20:53:35 UTC 2006


On Saturday 18 November 2006 07:10, McNally wrote:
>  >From: Jerome Yuzyk <jerome at supernet.ab.ca>
>  >Subject: [mythtv-users] Fast-Forward speed limitations?
>  >
>  >I find I cannot reliably Fast Forward more than 3X. For 5X and more, I
>
> get
>
>  >about a dozen samples (steps?) and then the picture stops. Pausing and
>  >Unpausing starts about half-way through what was FFed before the
>
> stoppage.
> I>'ve pushed it a few times, with FF and RW, and Myth will wake up from
> its
>
>  >freeze, but if I do it enough Myth gets totally hosed to where I have
>  > to kill it.
>  >
>  >Is this a hardware limitation (too slow to keep up seeking and feeding
>
> the
>
>  >display stream from disk) or Myth getting befuddled?
>
> I had this problem on my similar Fedora Core 4 system. Removing the
> nvidia drivers and installing the version recommended in the wiki
> (1.0.8756) cleared this up and now i can fast forward up to 120x. I am
> using  ivtv version 0.7.0 which is pretty current for my kernel.  I am
> not using any fancy video options, such as  XvMC. However the XvMC wiki
> page has info about nvidia drivers.
>
> http://www.mythtv.org/wiki/index.php/XvMC
>           As of 2006-04-7, the currently recommended driver version is:
> *1.0.8756* as it fixes the OpenGL Vsync
> <http://www.mythtv.org/wiki/index.php?title=OpenGL_Vsync&action=edit>
> issues present in earlier versions, as well as fixing the AGP + XvMC
> issues on 6200 series cards.

I am running the 8774 drivers, but no XvMC. Maybe there is a regression.



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